Discharger



April 16, 1935. R. Q CQUPLAND ,1,997,574

DIVSCH'ARGER Filed oct. 5, 1952 /0 s 36 4 Y Richard E Emupl'and Attprney Patented Apr. v16, 17935 f 1,997,574 t www STATES PATENT emes A, V1,997,574. f v nlsoHARGER i l Y Richard C. ooeplaaunitea states Army,y i n j .Nforfolkya. application catchers, 1932, serialNo. 636,365 .Y

claims'. (o1. `1a-1) (Grantedlnder the act of March 3, 1883, as l amended Aprill Si), 192,8; 370 0. G. 757) y Y 'Hlnhe invention described herein maybe manuheld in position of adjustmentby means of a factured V-andns'ed by `or for the Government Yfor click latch I5. n .l .Y 4 l i 'I governmental purposes, Without-theipayment to A pair of spaced tubes IS-IS secured to the me of` any royalty thereon. Y Y upper-surfacelof thebody 5 each receives one This invention relates tn o a discharger especially Aofa pair of tubes I1-I'I secured to the forward 5 adapted for attachment A to a rifle-,and capable end ef the barrelv A. Within each set of tele-` of iiringa grenade or pyrotechnic signal.V L ,Y scoping tubes is a'spring I8 confined between the The main object of Vthe inventionis to provide rear end I9 of the tube I6 and a diaphragmZ in a` dischargerin which al barrel has along recoil the tube I1. Arrod 2l secured to the endY i9 10 stroke, in l a stationary receiver that-is adapted Vhas a head 22 disposed in front of the diaphragm 10 to contain anauxiliary recoil check. and engageable thereby whereby to limit forward A furtherobject istoproyide a novel firing pin movement of the tube I7 under the iniuence vor" and trigger mechanism that may be conveniently the spring I8. v v associated with the receiver and barrel. As shown inY the drawing the tubes II are V; Y To these and other ends,`the invention consists preferably :Secured to a -collar Y 23 on the `front' 15 inthe construction,arrangement and combinaend of 'the `barrel A. An aperture 24 extending tion of elements vdescribed hereinafter and pointthrough the barrel andthe collar enables a pored out inthe Yclaims formingapartiofthis specition of the gases of Ydischarge to strike a baille .fication V1 l. l' plate 25 secured to the under side of the collar. 2o. vA practical embodiment of the invention isil- Such action results in checking recoil of the bar- 2o,

i lustrated in the accompanying drawing, wherein: relandarresting climb of the riileas is well Fig. ljis a View in side elevation of theimunderstood in the art. Y. proved discharger. y 1 y f Referring to Fig. 2 the base 2E ofthe barrel is 2 is a verticalsectionalview takengener- Y provided centrally with. an aperture Z'I for really on the line .2--2 of Fig. 5.' Q ceivng a ,tube 284threa'dedly mounted on a for- 25 Fig. 3 is a plan View, parts being shown in Wardly projecting portion 29 of Vthe'bushing I 9.

Setn... l Y y When thus `assembled the tube is held, against Fig. 4 isa longitudinal sectional view of the forwarddispvlacement by the engagement of the firing pin, and bushing with one side of the base 'I of the receiver Fig. 51is a View in rear elevation of the disand it is held against rearward displacement by 301 chargen means of a collar 30 engageable with theother Referring to the drawing by character of referside of Vthe base. Y ence: A liner 3| in the front end of the tube 28 car- The discharger consists generally of a. barrel VTies an apeltllled P1119 32 that SeIVeS t0 limit fol'- 35 A movably mounted in a receiver B that is secured Ward movement of a firing-pin head 33. A spring to the muzzle of a rifle C in a manner similar to 34 embracing the Stem 35 Of the rng Din S COH- a bayonet. n n ned between the portion29 of the bushing I0 The receiver comprises a cylindrical body 5 and the rear face of the liner 3|. The ends of whose upper surface includes a socket 9 for rethe Spring are also available fOr Contat With the 40 ,carving the muzzle of tne'rifie barrel and whose rear face 0f the rine-pin head and with a pair of 40 Y base l is formed with a groove 8 for receiving the 1119s 36-35- 0H the III-I1 35- The lugs 36 are lug 9 provided on the rifle for attachment of a normally ISDOSB Wlthlll the H0111? @11d 0f the bayonet. A bushing in (Figa mounted in the Forum 29 0f the Qushlne I6 and engage 1n base 'i of the body 5 has an externally threaded grooves 31-31 therem The lugsf 31nd the rear 4o portion I projecting rearwardly from the base ends of the grooves cooperate to 11m1t retraction to carry a nut I2.. The nut is circular with a segof the rmg pm: ment cut away to provide a flat side I3. When The rear portln SI5 Dime Stem 31? exilends mounting the discharger on the `riiie by a movethrough hte Eushugth 1S Sguareqh herm t0, r ment parallel to the axis thereof in Vorder to co-n- -regefnhl o a'ge orionmaaprres 'lrg' 5 o Y L) nect the lug 9 and groove 8, the flat sideIB of the 1 y e sq p Y g arm 38 which is preferably in the form of half nut 1s disposed parallel `to and clearof the floor of al Cup so that' the nut I2 may bedsposed I4 ofthe gIOOVe 3- .Paltal Imation. 0f the mit therein when the ring pin is in forward posidisposes it in rear of the lug 9 whereit serves to tion prevent Withdrawal of "the discharger.' Thenut A trigger 39 slidably mounted in a passage 40 5 in the base of the receiver in a position parallel to the firing pin is formed with a slot 4| in which a latch 42 is pivotally mounted on a pin 43. The rear end 44 ofthe latch is engageable with the cocking arm 38 and is normally maintained in this position by means of a spring 155 acting on the forward end-46 of the latch and holding said forward end against the wall ofthe passage 48.

A cam 41 secured to the base 'I at the rear end l of the passage 48 is provided for tripping the latch and also for limiting thev rearward stroke y of vthe trigger. i n i As clearly shown in Fig. 3 the cooking arrn 38 is also engageable with the click latch l and serves as a. means for moving the ciick latch out of contact with the nut I2. .t

A series of resilient rings 48 may be placed' in the receiver in rear of the barrel to supplement the springs in checking recoil of the barrel.

The projectile to be red Vfrom the device contrigger being extended so as to be engageable with the cooking arm 38.

When the trigger'is retracted, the latch, by virtue'of its `engagement with the cooking arm, will also retract the firing pin. During this movement the `firing lpin head 3-3 picks up the spring 34 and compresses it. When the'latch is tripped cn striking the cam 41 the ring pin is released and is driven forward by thecompressed spring. The spring is arrested by the rear face of the liner 3| but the inertia of the pin carries it forward through `the vapertured plug where it strikes the primer vof the projectile. During this additional forward movement ofthe ring pin the lugs 36 thereon act on therear end of the spring to compress it' and prov-ide the energy for ultimately restoring the pin to its normal position. f

When the projectile is red from the barrel,

the reaction of the propellant force causes the barrel to move rearwardly in recoil compressing the springs I8 and the resilient rings 48 and storing up the energy required to return it into battery.

Troops not equipped with a rifle will use an appropriate substitute as a support.

I claim: l. A discharger including a cylindrical receiver, a barrel mounted for sliding movement in the receiver, a recoil and counterrecoil mechanism .associated vexternally with the Vreceiver and barrel, resilient rings within the receiver between yits base and the base of the barrel, a tube secured togthe base of the receiver and extending through the base of the barrel, and a ringpin within the tube.

2,. A ,dischargerr'including' a cylindrical receivv en a barrel mounted for sliding movement -in tending througn the base .of the barrel, and a fir--A ing pin within the tube. v

3. A dischargerincluding a cylindrical receiver, a barrel mounted for recoil movement in the receiver, a tube secured to the base of the receiver in rear of Vthe barrel and extending through the base of the barrel, a ring pin within the tube, and means for checking recoil of the barrel and restoring it to battery.

4. In va firingmechanism,'aV fixed tube having internal shoulders provided adjacent its ends and having a non-circular bearing in its rear end formed with grooves, a spring confined between the shoulders, a ring pin withinV the spring and having a non-circular stem extending through the bearing, a head .on the front end of the firing pin, lugs on the stem of the ring pin engaging in thegrooves of therbearing, the head and lugs engageable with respective ends .of the spring, an arm `on the rear extremity of the firing pin, a trigger mounted for movement parallel to the firing pin,.and means onthe trigger for releasably engagingl .the arm of the firing pin.

RICHARD C. COUPLAND. 

